10. What ……………………………… you (do) ……………………. if you (be) ………………….. him? 11. If that hat costs much, I (buy) ……………………………. a small one. 12. If you (drive) ……………………...more carefully, you (have) ………………………… so many accidents. 13. If I (make) …………………………….. that mistake again, my teacher (get) ……………………… angry with me. 14. If I spoke English, my job (be) …………………………….. a lot easier. 15. If he (go) ……………………………….. to London yesterday, he ( meet) ………………………………. his old friend. 16. I will lend them some money if they (ask) …………………………….. me. 17. If we had known who he was, we (invite) ………………………….. him to speak at our meeting. 18. My dog (bark) …………………………… if it (hear) ………………………….. any strange sound. 19. If I (have) ………………………….. enough money, I would buy a house. 20. They (not/let) …………………………… you in if you (come) late. 21. If you (not go) ……………………………….. away, I (send) ……………………………… for a policeman. 22. If I (be) ………………………………… in your place, I (accept) ………………………………… Mr. Anderson’s invitation. 23. If I (win) ……………………………. a big prize in a lottery, I’d give up my job. 24. If I (be) ……………………………….. you, I (tell) …………………………… the truth. 25. I was busy. If I (have) …………………………..free time. I (go) ……………………………. to the cinema with you. 26. Why didn’t you attend the meeting? Oh, I did not know. If I (know)……………………… I (come) ……………………..there. 27. What ……………….we(do)……………………� �� if they do not come tomorrow? 28. If I had enough time now, I (write) ………………………………. to my parents. 29. It’s too bad Helen isn’t here. If she (be) ………………………….. here, she (know) …………………..what to do. 30. If I (eat) …………………………… breakfast tomorrow morning, I (get) …………………………. hungry during class. Giải giúp mình vs ạ